The best means to predict the risk of future falls in a patient with a history of backward falls is?
The pull test

Most common cause of apparent resistant hypertension
What is medication nonadherence?
Medication nonadherence is a discrepancy between how a medication is prescribed and how the patient is actually taking it.
Its prevalence in patients with apparent treatment-resistant hypertension is difficult to determine. Studies have shown it ranging from 3% to 86%, with a pooled estimate of 31% in a meta-analysis.

47 yo female rescued from a smoke-filled house
Na 150, K 5.0 Cl 100, HCO3 15, Lactic acid 10.0
High venous SPO2
Most likely Dx?
What is cyanide toxicity?
This blocks Cyp Complex IV, blocking:
So even though oxygen is present in the blood, cells are unable to utilize it.
Stool osmotic gap equation
What is 290 - 2*(stool Na + stool K)
Osmotic gap >100 suggests osmotic diarrhoea


56 yo man with poorly controlled T2DM. Fundoscopic examination . What is the diagnosis?
What is Nonproliferative Diabetic Retinopathy?

How many bones does the average adult human body have?
What is 206 bones?
What disease process is characterized by gait impairment, urinary incontinence, and cognitive change?
What is normal pressure hydrocephalus?
MRI of the brain first.
A trial of CSF drainage should not be attempted in the absence of enlarged ventricles on brain MRI.

Irregular R-R interval, 72 bpm, from these findings, what is most likely the Dx and management?

Management focuses on addressing underlying causes (Tx COPD, drug toxicity...)

32 yo male, waist circumference of 108 cm, Daytime PCO2 greater than 45mmHg, what is the Dx?
Pickwickian syndrome (OHS)
3 hypotheses for the pathogenesis of chronic daytime alveolar hypoventilation in OHS:
Hampered respiratory mechanics due to obesity
Central hypoventilation caused by leptin resistance
Pathologic compensatory response to acute hypercapnia
Most likely cause of chronic diarrhea in a patient with long standing Celiac disease who is compliant with gluten-free diet
Microscopic colitis
DDx of unresponsive celiac disease:
HIV infection, irritable bowel syndrome, small intestinal bacterial overgrowth, microscopic colitis, pancreatic insufficiency and small intestinal lymphoma (enteropathy associated intestinal lymphoma - EATL)
Hypoglycemic episodes, Insulin↑, serum C-peptide↑, pro-insulin↑ → urine meglitinide metabolites ⊕
Dx?
What is Surreptitious use of Oral Hypoglycemic agents?
This muscle is considered the strongest muscle in the human body based on force generated.
What is the masseter muscle?
In patients who have received intravenous rtPA, antiplatelet agents such as aspirin must be withheld for what time period?
What is at least 24 hours?
The only valvular conditions where warfarin is still preferred over DOACs (2)
What are mechanical valves and moderate-to-severe mitral stenosis?
Recurrence prevention is recommended after the first occurrence of secondary spontaneous pneumothorax.
What is pleurodesis?
Unlike primary spontaneous pneumothorax (healthy young thin patient), 2ry spontaneous PTX has:
definitive recurrence prevention after the first episode

Work up and screening to be done in primary sclerosing cholangitis (mention 2/4)
-Colonoscopy and biopsy at time of diagnosis for IBD
-Annual or biannual MRCP and carbohydrate antigen 19-9 level for cholangiocarcinoma surveillance
-Annual US for gallbladder cancer

Autonomously functioning thyroid tissue; ↓TSH, ↑T4, ↑T3→thyroid scintrigraphy as shown
Toxic multinodular goiter
This is the only bone in the human body that does not directly connect to another bone.
What is the hyoid bone?
A 28-year-old man develops ascending weakness and areflexia 2 weeks after gastroenteritis. This therapy is NOT recommended because it does not improve outcomes in his condition.
What are corticosteroids?

Preferred fourth-line drug for resistant HTN per PATHWAY-2
What is spironolactone?
Antifibrotic agent indicated for the treatment of idiopathic pulmonary fibrosis.
pirfenidone (esbriet)
inhibiting fibroblast proliferation and collagen synthesis.
This slows the decline in lung function.

Sun-sensitive vesicular and bullous lesions in patients with chronic hepatitis C
Treatment?
Dx: Porphyria cutanea tarda
Phlebotomy, hydroxychloroquine, anti-viral therapy
One of the following:
1. 24hr urine free cortisol (shift workers, estrogen use)
2. late-night salivary cortisol
3. 1mg overnight dexamethasone suppression test
#1 & #2 tests are often repeated twice on different occasions to confirm abnormal cortisol production.
This is the longest nerve in the human body.
What is the sciatic nerve?

A headache, in a female which is worse in the morning and with performing the Valsalva maneuver along with a history of tobacco and oral contraceptive use and with a finding a papilledema is most consistent with what diagnosis?
Dural sinus venous thrombosis
Dx test: magnetic resonance venography

What medication increases the risk of ventricular fibrillation in this patient?
What is beta blocker?
Bc, blocks AV nodal conduction and may increase conduction through the accessory pathway, raising the risk of ventricular fibrillation
This asthma therapy carries an FDA black box warning when used without ICS due to increased asthma-related mortality.
What is LABA monotherapy?
The SMART trial showed:
especially in:
This led to the FDA boxed warning.
The ICS-LABA combination remains the most effective strategy for preventing severe asthma exacerbations in those with persistent asthma.
Indications for IV albumin in spontaneous bacterial peritonitis
While all patients with SBP benefit from albumin administration, those with the following baseline parameters derive particular benefit:
1. Serum creatinine level > 1 mg/dL
2. BUN > 30 mg/dL
3. Total bilirubin level > 4 mg/dL
Dose protocol:
High intensity statins? Mention at least 2 indications?
ASCVD patients, DM (ASCVD risk > 7.5%), LDL > 190;
1. atorvastatin 40/80
2. rousavastatin 20/40)
This is the only organ in the human body capable of functioning without a direct blood supply.
What is the cornea?